3D frequency and space domain amplitude-preserved migration with viscoelastic wave equations

LU Bin; LI Fei; LI Zhenchun; YE Yueming

doi:10.3969/j.issn.1673-8926.2007.01.016

Lithologic Reservoirs >

2007 , Vol. 19 >Issue 1: 86 - 91

DOI: https://doi.org/10.3969/j.issn.1673-8926.2007.01.016

3D frequency and space domain amplitude-preserved migration with viscoelastic wave equations

LU Bin ,
LI Fei ,
LI Zhenchun ,
YE Yueming

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1. Northwest Branch , Research Institute of Petroleum Exploration and Development , PetroChina;
2. Institute of Geology , Chinese Academy of Geological Sciences

Online published: 2007-03-15

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Abstract

The paper studied a new algorithm of 3D frequency and space domain amplitude-preserved migration with viscoelastic wave equations.This code gives an alternative method which compensates Q and transmission losses in the seismic data during scalar finite-difference migration.The geometrical spreading, Q and transmission losses and dispersion are compensated simultaneously as part of the migration.Firstly,starting from the viscoelastic wave equation, high-order finite-difference format of amplitude-preserved migration operator viscoelastic was derived.Secondly,the imaging condition was modified in order to include a ttenuation effecting in seismic propagating wavefield.Then,3D migration was realized by using a 3D one-way depth stepping extrapolation.Good processed results of synthetic data proved that algorithm is stable,reliable and widely applicable.

Key words： controlled illumination; focusing point; inverse focusing operator; prestack depth migration

Cite this article

LU Bin , LI Fei , LI Zhenchun , YE Yueming . 3D frequency and space domain amplitude-preserved migration with viscoelastic wave equations[J]. Lithologic Reservoirs, 2007 , 19(1) : 86 -91 . DOI: 10.3969/j.issn.1673-8926.2007.01.016

References

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